MULTI-LAYER CYCLIC REDUNDANCY CHECK CODE IN WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    MULTI-LAYER CYCLIC REDUNDANCY CHECK CODE IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    多层次循环冗余检查无线通信系统中的代码

    公开(公告)号:WO2009036004A2

    公开(公告)日:2009-03-19

    申请号:PCT/US2008/075775

    申请日:2008-09-10

    CPC classification number: H03M13/09 H04L1/0061 H04L1/0065

    Abstract: A wireless communication device (200) including a first CRC coder that generates a first block of CRC parity bits on a transport block and associates the first block of CRC parity bits with the transport block, a segmenting entity that segments the transport blocks into multiple code blocks after associating, and a second coder that generates a second block of CRC parity bits on each code block and associates a second block of CRC parity bits with each code block. The first and second blocks of CRC parity bits are based on first and second generator polynomials. In one embodiment, the first and second generator polynomials are different. In another embodiment, the generator polynomials are the same and the transport block is interleaved before segmenting or the code block are interleaved before encoding with the second block of CRC parity bits.

    Abstract translation: 1.一种无线通信设备(200),包括第一CRC编码器,所述第一CRC编码器在传输块上产生CRC奇偶校验位的第一块,并将所述第一CRC CRC奇偶校验块与所述传输块相关联;分段实体,将所述传输块分段成多个代码 以及第二编码器,其在每个代码块上生成CRC奇偶校验位的第二块,并将第二CRC CRC奇偶校验块与每个代码块相关联。 CRC奇偶校验位的第一和第二块基于第一和第二生成多项式。 在一个实施例中,第一和第二生成多项式是不同的。 在另一个实施例中,生成多项式是相同的,并且传输块在分割之前进行交织,或者在编码之前与第二块CRC奇偶校验位进行交织。

    APPARATUS AND METHODS FOR JOINTLY DECODING MESSAGES BASED ON APRIORI KNOWLEDGE OF MODIFIED CODEWORD TRANSMISSION
    3.
    发明申请
    APPARATUS AND METHODS FOR JOINTLY DECODING MESSAGES BASED ON APRIORI KNOWLEDGE OF MODIFIED CODEWORD TRANSMISSION 审中-公开
    基于修改编码传输的APRIORI知识的联合解密消息的设备和方法

    公开(公告)号:WO2007087512A2

    公开(公告)日:2007-08-02

    申请号:PCT/US2007/060868

    申请日:2007-01-22

    Abstract: A method and apparatus for jointly decoding a first and second message is disclosed. The signaling scenario illustrated by FIG. 1 and using the codeword properties defined herein, the various embodiments may combine multiple messages under the hypothesis that the value of a message portion corresponding any subsequent observed transmission is different. Accordingly a first buffer may store the first observed message frame (509) and a second buffer may sum the LLR's of subsequent observed frames (513). In the embodiments disclosed, two decoding hypotheses are required only; a first where the two buffers are combined directly (513) and a second where the difference codeword bit LLR's of the first buffer (509) are inverted before combining with those of the second buffer (519). A maximum of N transmissions is allowed by the receiver (523), after which a decoding failure is declared.

    Abstract translation: 公开了一种用于联合解码第一和第二消息的方法和装置。 图1所示的信令场景。 如图1所示,并且使用本文定义的码字属性,各种实施例可以在假设下对应于任何后续观察到的传输的消息部分的值不同的情况下组合多个消息。 因此,第一缓冲器可以存储第一观察消息帧(509),并且第二缓冲器可以对后续观察帧(513)的LLR进行求和。 在所公开的实施例中,仅需要两个解码假设; 第一缓冲器,其中两个缓冲器直接组合(513),第二缓冲器的第二缓冲器(509)的差分码字比特LLR与第二缓冲器(519)组合之前被反转。 接收机(523)允许最多N个传输,之后声明解码失败。

    METHOD AND APPARATUS FOR DETERMINING CODING RATE IN A WIRELESS COMMUNICATION SYSTEM
    5.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING CODING RATE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于确定无线通信系统中编码速率的方法和装置

    公开(公告)号:WO1997037471A1

    公开(公告)日:1997-10-09

    申请号:PCT/US1997000435

    申请日:1997-01-15

    Applicant: MOTOROLA INC.

    Abstract: A receiver (500) utilizes parameters generated by a Viterbi decoder (530) to determine one of a plurality of coding rates in which user information is transmitted. The receiver (500) combines the parameters in a predetermined manner, the result of which is a detection statistic (dij). By utilizing the detection statistic (dij), the coding rate at which user information is transmitted is accurately determined.

    Abstract translation: 接收机(500)利用由维特比解码器(530)产生的参数来确定发送用户信息的多个编码速率中的一个。 接收机(500)以预定的方式组合参数,其结果是检测统计量(dij)。 通过利用检测统计量(dij),准确地确定发送用户信息的编码率。

    METHOD FOR RELAYS WITHIN WIRELESS COMMUNICATION SYSTEMS
    6.
    发明申请
    METHOD FOR RELAYS WITHIN WIRELESS COMMUNICATION SYSTEMS 审中-公开
    无线通信系统中的中继方法

    公开(公告)号:WO2010053909A1

    公开(公告)日:2010-05-14

    申请号:PCT/US2009/063093

    申请日:2009-11-03

    CPC classification number: H04W72/1278 H04W84/047

    Abstract: A relay design backward compatible with existing wireless communication networks. The invention provides details of apparatus and methods to enable operation of inband relays. Using a grant-based inhibit mechanism, a Relay and an eNB can efficiently cooperate to improve the performance by allowing one of either UE or the Relay to transmit on the uplink. Similarly, the UE overrides any pre-determined schedule (i.e., absence of Reference Signals) by searching for a scheduling grant and if the UE find the scheduling grant, the UE can assume that the Relay has overridden the pre-determined schedule temporarily.

    Abstract translation: 继电器设计向后兼容现有的无线通信网络。 本发明提供了能够使带内继电器工作的装置和方法的细节。 使用基于授权的禁止机制,中继和eNB可以通过允许UE或中继中的一个在上行链路上进行发送来高效地协作以提高性能。 类似地,UE通过搜索调度许可来覆盖任何预定的调度(即,不存在参考信号),并且如果UE找到调度许可,则UE可以假设中继已临时覆盖预定调度。

    METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATION SYSTEM
    7.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统干扰消除的方法和装置

    公开(公告)号:WO2009137250A2

    公开(公告)日:2009-11-12

    申请号:PCT/US2009/040755

    申请日:2009-04-16

    Abstract: A mobile device estimates a data symbol from a received signal by using one or more interference cancellation algorithms. For one interference cancellation algorithm, the mobile device calculates (302) a Channel State Information (CSI) of an interfering sector and calculates (304) a CSI of a serving sector at a different time. The mobile device then determines (310) a correction factor to the CSI of the interfering sector by, for example, estimating a Doppler speed and a time difference between a first time interval like a preamble symbol and a second time interval like any symbol of interest in the data zone. Using the correction factor, the mobile device updates outdated interference information. The mobile device can cancel interference in the received signal distorted by co-channel interference by using the updated interference information. Also, the mobile device can be configured to combine results of multiple interference cancellation algorithms based on the applicability of the individual interference cancellation algorithms in particular scenarios.

    Abstract translation: 移动设备通过使用一个或多个干扰消除算法从接收信号估计数据符号。 对于一种干扰消除算法,移动设备计算(302)干扰扇区的信道状态信息(CSI),并在不同时间计算(304)服务扇区的CSI。 然后,移动设备通过例如估计诸如前同步码符号的第一时间间隔和像感兴趣的符号之类的第二时间间隔之间的时间差来确定(310)对干扰扇区的CSI的校正因子 在数据区。 使用校正因子,移动设备更新过时的干扰信息。 移动设备可以通过使用更新的干扰信息来消除由同信道干扰失真的接收信号中的干扰。 此外,移动设备可以被配置为基于在特定情况下各个干扰消除算法的适用性来组合多个干扰消除算法的结果。

    CODE-WORD LIST ALGORITHM
    8.
    发明申请
    CODE-WORD LIST ALGORITHM 审中-公开
    CODE-WORD列表算法

    公开(公告)号:WO2007005861A1

    公开(公告)日:2007-01-11

    申请号:PCT/US2006/026027

    申请日:2006-06-30

    Abstract: A communications system for reducing bit errors in a received data sequence provides a method for generating candidate code-word sequences for evaluation by a CRC decoder. The system may determine a most-likely received sequence using the probable code-word list of candidate sequences. The number of candidate sequences may be reduced using computational complexity reduction methods. A communications device also provides a candidate sequence generator for use with a CRC decoder to determine a most-likely received sequence and to reduce bit errors in a received sequence.

    Abstract translation: 用于减少接收数据序列中的位错误的通信系统提供了一种用于产生候选码字序列以供CRC解码器评估的方法。 系统可以使用候选序列的可能的码字列表来确定最可能接收的序列。 可以使用计算复杂度降低方法来减少候选序列的数量。 通信设备还提供与CRC解码器一起使用的候选序列发生器,以确定最可能的接收序列并减少接收序列中的比特错误。

    PREDICTIVE POWER CONTROL IN A DIGITAL DIVERSITY RECEIVER
    9.
    发明申请
    PREDICTIVE POWER CONTROL IN A DIGITAL DIVERSITY RECEIVER 审中-公开
    数字多功能接收机中的预测功率控制

    公开(公告)号:WO2006039041A1

    公开(公告)日:2006-04-13

    申请号:PCT/US2005/031168

    申请日:2005-08-30

    CPC classification number: H04W52/40 H04B7/0885

    Abstract: A method (300) and an apparatus (202) for a digital diversity receiver having a first receiver branch (204) and a second receiver branch (206) for adjusting a receiver power control loop during a radio frame (100) of a known length are provide. The digital diversity receiver (202) receives a first signal (208) through the first receiver branch (204) during the radio frame (100), and receives a second signal (210) through the second receiver branch (206) during a portion of the radio frame (106, 110). The second signal (210) originates from a common original signal (212) as the first signal 208. The digital diversity receiver (202) evaluates (308) a receiver power control parameter for the first interval (106) based upon the first signal (208) and the second signal (210), and compensates (310) the receiver power control parameter with an offset value for the first interval (106). The compensated receiver power control parameter is then applied (312) to the receiver power control loop during the first interval.

    Abstract translation: 一种用于数字分集接收机的方法(300)和装置(202),其具有第一接收器分支(204)和第二接收器分支(206),用于在已知长度的无线电帧(100)期间调整接收机功率控制回路 提供。 数字分集接收机(202)在无线帧(100)期间通过第一接收机分支(204)接收第一信号(208),并且在一部分时间段期间通过第二接收机分支(206)接收第二信号(210) 无线电帧(106,110)。 第二信号(210)起始于作为第一信号208的公共原始信号(212)。数字分集接收机(202)基于第一信号(106)评估(308)第一间隔(106)的接收机功率控制参数 208)和第二信号(210),并且用第一间隔(106)的偏移值补偿(310)接收机功率控制参数。 然后在第一间隔期间将补偿的接收机功率控制参数(312)应用于接收机功率控制回路。

    METHOD AND APPARATUS FOR POWER CONTROL IN A SPREAD-SPECTRUM COMMUNICATION SYSTEM
    10.
    发明申请
    METHOD AND APPARATUS FOR POWER CONTROL IN A SPREAD-SPECTRUM COMMUNICATION SYSTEM 审中-公开
    在频谱通信系统中功率控制的方法和装置

    公开(公告)号:WO1997034434A1

    公开(公告)日:1997-09-18

    申请号:PCT/US1997000166

    申请日:1997-01-03

    Applicant: MOTOROLA INC.

    Abstract: Power control in a spread-spectrum communication system takes place by dynamically adjusting the step-down size of a power control threshold (407-415) based on an acquired number of poor-quality frames (405). The step-down size of the threshold is increased or decreased depending on an amount of frame erasures detected by the system (407-415). Additionally, full-rate or sub-rate frame quality is used to dynamically adjust the step-down size of a power control threshold.

    Abstract translation: 扩展频谱通信系统中的功率控制是通过基于所获取的不良质量帧数(405)来动态调整功率控制阈值(407-415)的降压尺寸来进行的。 根据系统检测到的帧擦除量,阈值的降档大小增加或减小(407-415)。 此外,全速率或子速率帧质量用于动态调整功率控制阈值的降压尺寸。

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